12749237887122 has 24 divisors (see below), whose sum is σ = 30134562279120. Its totient is φ = 3863405420280.

The previous prime is 12749237887069. The next prime is 12749237887147. The reversal of 12749237887122 is 22178873294721.

12749237887122 is a `hidden beast` number, since 1 + 2 + 7 + 492 + 3 + 78 + 8 + 71 + 2 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12749237887122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32195044972 + ... + 32195045367.

It is an arithmetic number, because the mean of its divisors is an integer number (1255606761630).

Almost surely, 2^{12749237887122} is an apocalyptic number.

12749237887122 is an abundant number, since it is smaller than the sum of its proper divisors (17385324391998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12749237887122 is a wasteful number, since it uses less digits than its factorization.

12749237887122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64390090358 (or 64390090355 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The spelling of 12749237887122 in words is "twelve trillion, seven hundred forty-nine billion, two hundred thirty-seven million, eight hundred eighty-seven thousand, one hundred twenty-two".